SE0103371D0 - Flow measurements - Google Patents

Flow measurements

Info

Publication number
SE0103371D0
SE0103371D0 SE0103371A SE0103371A SE0103371D0 SE 0103371 D0 SE0103371 D0 SE 0103371D0 SE 0103371 A SE0103371 A SE 0103371A SE 0103371 A SE0103371 A SE 0103371A SE 0103371 D0 SE0103371 D0 SE 0103371D0
Authority
SE
Sweden
Prior art keywords
pump
fan
rotational speed
torque
voltage
Prior art date
Application number
SE0103371A
Other languages
Swedish (sv)
Inventor
Ulrike Windecker
Said Zahrai
Bertil Olsson
Original Assignee
Abb Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Abb Ab filed Critical Abb Ab
Priority to SE0103371A priority Critical patent/SE0103371D0/en
Publication of SE0103371D0 publication Critical patent/SE0103371D0/en
Priority to EP02778146A priority patent/EP1476726A1/en
Priority to PCT/SE2002/001844 priority patent/WO2003031918A1/en
Priority to US10/820,149 priority patent/US6918307B2/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0088—Testing machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

Measures of a torque and rotational speed of a pump or fan are obtained, from which a mechanical input power can be calculated. By further using predetermined relations between mechanical input power and flow rate through the pump or fan, a measure of the flow rate can be derived without use of in-line flow or pressure sensors. In preferred embodiments the torque and/or rotational speed is obtained by measuring the input current and voltage of a motor driving the pump or fan and using predetermined relations between on the one hand current and voltage and on the other hand torque and rotational speed. Furthermore, also other flow properties, such as pump head, pump efficiency and total efficiency can be determined in this manner.
SE0103371A 2001-10-09 2001-10-09 Flow measurements SE0103371D0 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE0103371A SE0103371D0 (en) 2001-10-09 2001-10-09 Flow measurements
EP02778146A EP1476726A1 (en) 2001-10-09 2002-10-09 Device, system and method for on-line monitoring of flow quantities
PCT/SE2002/001844 WO2003031918A1 (en) 2001-10-09 2002-10-09 Device, system and method for on-line monitoring of flow quantities
US10/820,149 US6918307B2 (en) 2001-10-09 2004-04-08 Device, system and method for on-line monitoring of flow quantities

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0103371A SE0103371D0 (en) 2001-10-09 2001-10-09 Flow measurements

Publications (1)

Publication Number Publication Date
SE0103371D0 true SE0103371D0 (en) 2001-10-09

Family

ID=20285601

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0103371A SE0103371D0 (en) 2001-10-09 2001-10-09 Flow measurements

Country Status (4)

Country Link
US (1) US6918307B2 (en)
EP (1) EP1476726A1 (en)
SE (1) SE0103371D0 (en)
WO (1) WO2003031918A1 (en)

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Publication number Priority date Publication date Assignee Title
CN111814263A (en) * 2020-02-21 2020-10-23 北京航空航天大学 Compressor blade working mode judging method, calculating equipment and readable storage medium

Also Published As

Publication number Publication date
US6918307B2 (en) 2005-07-19
WO2003031918A1 (en) 2003-04-17
EP1476726A1 (en) 2004-11-17
US20050031443A1 (en) 2005-02-10

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